First Business Financial Services’s Aon AON Stock Holding History

First Business Financial Services’s Portfolio AON Stock Details AON Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$447K	Hold	1,384	–	–	0.04%	124
2025 Q4	$488K	Hold	1,384	–	–	0.04%	116
2025 Q3	$494K	Hold	1,384	–	–	0.05%	126
2025 Q2	$494K	Hold	1,384	–	–	0.04%	122
2025 Q1	$552K	Sell	1,384 -248	-15%	-$95.1K	0.05%	111
2024 Q4	$586K	Hold	1,632	–	–	0.06%	111
2024 Q3	$565K	Hold	1,632	–	–	0.06%	105
2024 Q2	$479K	Hold	1,632	–	–	0.05%	107
2024 Q1	$545K	Hold	1,632	–	–	0.06%	103
2023 Q4	$475K	Sell	1,632 -296	-15%	-$94.7K	0.06%	105
2023 Q3	$625K	Buy	1,928 +7	+0.4%	+$2.32K	0.08%	101
2023 Q2	$663K	Hold	1,921	–	–	0.08%	97
2023 Q1	$606K	Hold	1,921	–	–	0.08%	98
2022 Q4	$577K	Hold	1,921	–	–	0.08%	97
2022 Q3	$515K	Hold	1,921	–	–	0.07%	96
2022 Q2	$518K	Hold	1,921	–	–	0.07%	101
2022 Q1	$626K	Hold	1,921	–	–	0.07%	92
2021 Q4	$577K	Hold	1,921	–	–	0.06%	100
2021 Q3	$549K	Hold	1,921	–	–	0.06%	101
2021 Q2	$459K	Hold	1,921	–	–	0.05%	106
2021 Q1	$442K	Buy	1,921 +220	+13%	+$48.4K	0.06%	97
2020 Q4	$359K	Buy	+1,701	New	+$347K	0.05%	99
2020 Q2	–	Sell	-1,975	Closed	-$326K	–	122
2020 Q1	$326K	Hold	1,975	–	–	0.06%	86
2019 Q4	$411K	Hold	1,975	–	–	0.07%	89
2019 Q3	$382K	Hold	1,975	–	–	0.07%	86
2019 Q2	$381K	Buy	+1,975	New	+$358K	0.07%	86
2015 Q4	–	Sell	-3,269	Closed	-$290K	–	56
2015 Q3	$290K	Buy	+3,269	New	+$316K	0.09%	60

Other funds holding AON

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

First Business Financial Services's AON Position: Q1 2026 in Review

First Business Financial Services held its Aon (AON) position steady in Q1 2026 at 1,384 shares worth $447K. The position accounts for 0.04% of the portfolio, ranked #124.

First Business Financial Services first reported a position in AON in Q3 2015 and has held it in 27 quarters since. The position peaked at $663K in Q2 2023. 1,252 funds tracked by Wall St. Rank hold AON as of Q1 2026.

First Business Financial Services held 1,384 shares of Aon worth $447K as of Q1 2026.
First Business Financial Services left its Aon share count unchanged in Q1 2026.
Aon made up 0.04% of First Business Financial Services's portfolio in Q1 2026, its #124 holding.
First Business Financial Services first reported a position in Aon in Q3 2015 and has held it in 27 quarters since.
First Business Financial Services's Aon position peaked at $663K in Q2 2023.
1,252 funds tracked by Wall St. Rank held Aon as of Q1 2026.

Based on First Business Financial Services's 13F filing for Q1 2026, filed 1 May 2026.